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81228 - NTN

81228

Rolamento de agulha, rolamento axial de rolos cilíndricos, série 812

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Arquivo 3D

Folha de dados técnica

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Contate-Nos
CARACTERÍSTICAS TÉCNICAS
MarcaNTN
d - Bore diameter of support washer IR - WS140 mm
D - Outside diameter of support washer OR - GS200 mm
d1 - External diameter of support washer IR - WS197 mm
D1 - Bore diameter bearing washer OR - GS143 mm
T - Thrust bearing height46 mm
Dw - Rolling element diameter19 mm
Dc1 - Roller cage bore diameter140 mm
Dc - Roller cage outer diameter200 mm
B - Ring thickness13,5 mm
rs - Min fillet radius1,5 mm
Cage assembly referenceK81228
Bearing ring (inner ring) WSWS81228
Bearing ring (outer ring) GSGS81228
Ea - Rollers reference outer diameter189 mm
Eb - Rollers reference inner diameter150,1 mm
Peso4,57 kg
Cage assembly mass1,2 kg
Bearing ring (inner ring) WS mass1,69 kg
Bearing ring (outer ring) GS mass1,69 kg
Classe de precisãoP0
Product classification image
DESEMPENHO
Ca - Dynamic axial load rating370 kN
C0a - Static axial load rating1280 kN
Cua - Limit axial load rating133 kN
Nlim - Grease lubrication limit speed350 tr/min
Nlim - Oil lubrication limit speed1400 tr/min
Tmin - Temperatura mín de operação-20 °C
Tmax - Temperatura máx de operação120 °C
RECOMENDACOES DE BARREIRA
da min - Min shoulder diameter IR188 mm
Db max - Max OR shoulder diameter150 mm
ras max - Max shaft & housing fillet radius1,5 mm